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Finding the Fourth Proportional to 458,323.60, 687,485.40 and 333,907.60

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Solution

The fourth proportional to 458,323.60, 687,485.40 and 333,907.60 is: 500,861.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,323.60 : 687,485.40 = 333,907.60 : x
  2. Step 2: Convert to fraction form
    458,323.60/687,485.40 = 333,907.60/x
  3. Step 3: Cross multiply
    458,323.60x = 687,485.40 × 333,907.60
  4. Step 4: Simplify right side
    458,323.60x = 229,556,599,949.04
  5. Step 5: Solve for x
    x = 229,556,599,949.04/458,323.60
  6. Step 6: Final answer
    x = 500,861.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.